Lighting or signalling device having an optical guide for a motor vehicle

A lighting and/or signalling device, in particular for a motor vehicle, comprising at least one light source emitting light rays and at least one optical guide in which said light rays spread, said at least one optical guide comprising:

• at least one end of said at least one optical guide comprising an input face coupling said at least one optical guide and said at least one light source,
• a first surface forming an output face for the light rays, and
• a second surface forming a face for reflection of the light rays,
• wherein said at least one optical guide has at least one bend, said at least one optical guide in the region of said at least one bend having at least one corner protruding toward the outside of said at least one bend and bevelled by having two facets in order to send back the incident light rays into said at least one optical guide,
• wherein the protruding corner is designed so as to cause two reflections successively onto one then the other of the facets under conditions for total reflection of the incident light rays.

A lighting and/or signalling device, in particular for a motor vehicle, comprising at least one light source emitting light rays and at least one optical guide in which said light rays spread, said at least one optical guide comprising:

• at least one end of said at least one optical guide comprising an input face coupling said at least one optical guide and said at least one light source,
• a first surface forming an output face for the light rays, and
• a second surface forming a face for reflection of the light rays,
• wherein said at least one optical guide has at least one bend, said at least one optical guide in the region of said at least one bend having at least one corner protruding toward the outside of said at least one bend and bevelled by having two facets in order to send back the incident rays into said at least one optical guide,
• wherein said at least one optical guide has an almost closed contour, with the two input faces arranged in proximity to each other.

A lighting and/or signalling device for a motor vehicle, comprising at least one light source emitting light rays and at least one optical guide, said at least one optical guide comprising:

• an input face at an end for receiving light rays from said at least one optical guide,
• a first surface forming an output face for said light rays, and
• a second surface remote from the output face, forming a face for reflection of the light rays,
• wherein said at least one optical guide has at least one bend, said at least one optical guide in the region of said at least one bend having at least one area for returning incident light rays into said at least one optical guide, wherein said at least one area comprises at least two facets for directing incident light rays into said at least one optical guide.

A lighting and/or signalling device for a motor vehicle, comprising at least one light source emitting light rays and at least one optical guide, said at least one optical guide comprising:

• an input face at an end for receiving light rays from said at least one optical guide;
• a first surface forming an output face for said light rays;
• and
• a second surface remote from the output face, forming a face for reflection of the light rays;
• wherein said at least one optical guide has at least one bend, said at least one optical guide in the region of said at least one bend having at least one area for returning incident light rays into said at least one optical guide,
• wherein said at least one area comprises a protruding corner adapted to cause two reflections successively onto facets associated with said at least one bend under conditions for total reflection of the incident light rays.

A lighting and/or signalling device for a motor vehicle, comprising at least one light source emitting light rays and at least one optical guide, said at least one optical guide comprising:

• an input face at an end for receiving light rays from said at least one optical guide;
• a first surface forming an output face for said light rays;
• and
• a second surface remote from the output face, forming a face for reflection of the light rays;
• wherein said at least one optical guide has at least one bend, said at least one optical guide in the region of said at least one bend having at least one area for returning incident rays into said at least one optical guide,
• wherein said at least one optical guide has an almost closed contour, with two input faces arranged in proximity to each other.